FreeBSD : re2c -- uncontrolled recursion (b0e1fa2b-9c86-11ed-9296-002b67dfc673)

medium Nessus Plugin ID 170569

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b0e1fa2b-9c86-11ed-9296-002b67dfc673 advisory.

- re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.
(CVE-2018-21232)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2018-21232

http://www.nessus.org/u?2cad5e02

Plugin Details

Severity: Medium

ID: 170569

File Name: freebsd_pkg_b0e1fa2b9c8611ed9296002b67dfc673.nasl

Version: 1.0

Type: local

Published: 1/25/2023

Updated: 1/25/2023

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2018-21232

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*, p-cpe:2.3:a:freebsd:freebsd:re2c:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 1/25/2023

Vulnerability Publication Date: 4/29/2020

Reference Information

CVE: CVE-2018-21232